WATER PURIFICATION INTAKE FACILITY Russian patent published in 2018 - IPC E02B8/02 

FIELD: hydraulic engineering; motors and pumps.

SUBSTANCE: invention relates to hydraulic engineering, namely to facilities for complex water treatment from drawn and part of suspended sediment during water intake into canals, pipelines and antechambers of pumping stations. Water intake purification plant includes a collecting settling chamber 1. Collecting settling chamber 1 is made with an inclined bottom and is divided by a vertical partition 2 into two sections 3 and 4 connected by a window 5. Window 5 is made at the partition 2 bottom part. Chamber 1 has a rinsing hole 10 with a collector 11. In the middle part, chamber first section 3 is provided with a set of vibrating gratings 7, 8 and 9 having slopes with different clearance dimensions between the grating rods, which decrease from the upper grate 7 to the lower grates 8 and 9 towards the nano-dust slit hole 15 in the side wall of the chamber section 3. Vibrating gratings 7, 8 and 9 are articulated to the vertical partition 2 at one end and freely supported to the restraining rods 12, 13 and 14 with the other, which are fixed into the walls of the chamber 1 section 3. At that, the vibrating gratings 7, 8 and 9 overlap the entire cross-sectional area of the chamber 1 section 3. By a free end, lower grate 9 is further supported on the horizontal shelf 17 below the nano-dust slit hole 15. In the upper part, chamber second section 4 is additionally provided with a horizontal grid 18. During the facility operation, the water with sediments enters the chamber 1 section 3, falls on the grids 7, 8 and 9, where it is split into separate jets, and large and small deposits are washed from the grids 7, 8 and 9 in the direction of their tilting into the nano-dust slit hole 15 with a manifold 16 having an exit from the outside of the chamber 1, and the fine and suspended deposits are concentrated at the section 3 lower part and drawn into the pit at the rinsing opening 10 with the collector 11. Grates 7, 8 and 9 also perform the flow energy damping function, which reduces the falling water flow velocity and creates conditions for sediment deposition in the pit zone with the chamber 1 inclined bottom. Horizontal grate 18 further dampens the clean water surface wave in the chamber 1 section 4 upstream of the discharge pipe 19.

EFFECT: increasing efficiency of continuous water purification from bottom and suspended sediments, as well as from the floating rubbish with clean water to the consumer.

1 cl, 2 dwg